[
https://issues.apache.org/jira/browse/SPARK-13610?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Hyukjin Kwon resolved SPARK-13610.
----------------------------------
Resolution: Incomplete
> Create a Transformer to disassemble vectors in DataFrames
> ---------------------------------------------------------
>
> Key: SPARK-13610
> URL: https://issues.apache.org/jira/browse/SPARK-13610
> Project: Spark
> Issue Type: New Feature
> Components: ML, SQL
> Affects Versions: 1.6.0
> Reporter: Andrew MacKinlay
> Priority: Minor
> Labels: bulk-closed
>
> It is possible to convert a standalone numeric field into a single-item
> Vector, using VectorAssembler. However the inverse operation of retrieving a
> single item from a vector and translating it into a field doesn't appear to
> be possible. The workaround I've found is to leave the raw field value in the
> DF, but I have found no other ways to get a field out of a vector (eg to
> perform arithmetic on it). Happy to be proved wrong though. Creating a
> user-defined function doesn't work (in Python at least; it gets a
> pickleexception).This seems like a simple operation which should be supported
> for various use cases.
--
This message was sent by Atlassian JIRA
(v7.6.3#76005)
---------------------------------------------------------------------
To unsubscribe, e-mail: [email protected]
For additional commands, e-mail: [email protected]
